I was an early adopter of the portable "MP3-CD" player (and a late adopter of the portable CD player in general, because that's the first I ever owned). That, the radio, and commercially-bought cassettes were the only ways I played music in my car as a teenager.

The point is, though, I was responding to the previous comment about "the hassle of burning a cd of mp3s and then recording the cd onto a cassette tape." I know there were other ways to do it, but I wasn't discussing them.